/*
 *  Simbad - Robot Simulator
 *  Copyright (C) 2004 Louis Hugues
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful, 
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 -----------------------------------------------------------------------------
 * $Author: sioulseuguh $ 
 * $Date: 2005/08/07 12:24:57 $
 * $Revision: 1.2 $
 * $Source: /cvsroot/simbad/src/simbad/sim/BlockWorldCompositeObject.java,v $
 */

package simbad.sim;

import java.util.ArrayList;

import javax.media.j3d.BoundingSphere;

/**
 * Base classt for all composite block world objects (arch...).
 */
public class BlockWorldCompositeObject extends BlockWorldObject {
	/** Keep list of all simple components . */
	ArrayList components;

	public BlockWorldCompositeObject() {
		components = new ArrayList();
	}

	/** Create and pre Compute the transformed bound of the objects. */
	@Override
	protected void createTransformedBounds() {
		for (int i = 0; i < components.size(); i++) {
			BlockWorldObject bo = (BlockWorldObject) components.get(i);
			bo.createLocalToVworld();
			bo.createTransformedBounds();
		}

	}

	/**
	 * Returns true if the object intersect with the given bounding sphere. This
	 * can be overriden.
	 * 
	 * @param bs
	 *            the boundingsphere to intersect with.
	 */
	@Override
	protected boolean intersect(BoundingSphere bs) {
		// If any component intersect
		for (int i = 0; i < components.size(); i++) {
			if (((BlockWorldObject) components.get(i)).intersect(bs))
				return true;
		}
		return false;
	}

	protected void addComponent(BlockWorldObject o) {
		components.add(o);
		addChild(o);
	}
}
